Safety device for elevators.



'No. 734,384. PATENTED JULY 2L 1903.

' W. H. WILSEY.

SAFETY DEVICE FOR ELEVATORS. APPLICATION rmzn me. 13. 1902. no MODEL. I 2 SHEETS-SHEET 1.

No. 734,384. PATENTED JULY 21, 1903.

I W. H. WILSEY. I I

SAFETY DEVICE FOR ELEVATORS.

APPLICATION FILED AUG. 13, 1902.

2 SHEETS-SHEET 2 NO MODEL.

b 600 w Mafi ZZw 4 fl J \E & fii'J A v u h nv /r ///L/ 4 1 g 4 6! o a aw w 3% J M NA. 4 /%/A 7 tion taken on the line 3 3 of Fig. 1.

r mmed July 21, 1903.

PATENT OFFICE.

fW'I I JL IA'M H. WILSEY, on SIOUX-CITY, 'IOWA.

SAFETY "DEVICE FOR ELEVATORS.

SPECIFICATION forming part a Letters Patent No. 734,384, dated July 21, 1903.

Application filed August 13,1902. Serial No. 119,544; (No model.)

To aZZ whom it may concern:

Be it known that L'WILLIA H. WILSEY, a citizen of the United States, residing at Sioux City, in the county of Woodbury and State of Iowa, have invented new and useful Improvements in Safety Devices for Elevators, of which the following is a specification.

This invention relates to certain new and useful improvements in safety devices for elevators, particularly that class of safety devices adapted for preventing the shaft-door being opened except when the elevator car or cage is stopped opposite the landing upon which said shaft-door is locatedand the ascent of the car or cage while the shaft-door is open for the entrance or exit of passengers.

The object of the invention is to provide an automatically-operating mechanism forming a safety device'which is automatically operated by the mechanism. controlling the ascent and descent of the car or cage and which when automatically operated will permit of the opening of the shaft-door to enable the ingress and egress of passengers to and from the elevator car or cage. I The invention further aims to provide a safety device for elevators which shall be extremely simplein itsconstruction, strong, durable, efficient in its operation, readily set up; and to this endit consists in the novel combination and arrangement of parts hereinafter more specifically described,illustrated in the accompanying drawings, and particularly pointed out in the claims hereunto ap pended. 1

In describing the invention in detail-reference is had to the accompanying drawings, forming a part of this specification, wherein like numerals of reference denote corresponding parts throughout the several views, and in which- Figure 1 is an inside face view of an elevator car orcage and a portion of the elevatorshaft, the controller of the car being shown in its effective position to prevent of its movement, as well as to permit of the opening ofthe door of the elevator-shaft. Fig. 2 is a similar view showing the controller of the car in its ineffective position, so that the door of the shaft cannot be opened. Fig. 3 is a transverse sectional elevation, the sec- Fig. 4

Referring-now to the drawings, the numeral 10 indicates theshaft of the elevator, and 11 a carer cage adapted to travel therein. The elevator-shaft 1O has an opening 12, adapted to be closed 'by the door 13, which is shown as being of' thesliding kind. The car or cage is provided with a controller 14, which is shown as a swinging or oscillating lever carried by the rock-shaft 15-, suitably mounted within or underneath the bottom of the car and connected to the usual operating mechanism.

The lower end of the controller 14 carries an L-shaped arm 16, provided on its free end with astud 17. The function of this L-shaped arm 16 and stud 17 will be hereinafter described.

The reference-numeral l8 denotes the front wall of the car or cage,and against the inner face of the said front wall 18 is a verticallyextending flat plate or board 19, secured to the bottom of the car or cage. Connected to the inner face of the plate 19 is a pair of quadrant-shapedbars 20, having their top edges provided with a notch 21. Each notch of the bars 20 is arranged approximately centrally thereof. These oars 20 are suitably spaced apart and have operating between .them the controller 14. 'At each end of the bars '20 is arranged a stop 22 for limiting the movement of the controller. The latter carries a'spring-pressed retaining-lug 23, which is adapted to engage in one of the notches 21 the door is opened in a manner hereinafter when occasion requires. The vertically-movable bar I term the latch-arresting bar. The plate 19 is provided with an opening 28, registering with the opening 26, and the front wall of the car is provided with an opening 29, registering with the opening 28.

WVithin the bottom of the car or cage is arranged a rock-arm 30. This arm has a portion of its length formed in a curvilinear manner, as at 31, and is also provided with an oval-shaped slot 32. One end of the rockarm is pivotally connected, as at 33, to the bracket 34, secured within the bottom of the car or cage, and the other end of the arm 30 is pivotally connected, as at 35, to the lower end of the bar 25. Within the ovalshaped slot of the rock-arm 30 the stud 17 of the L-shaped arm 16 is adapted to operate. It will be evident that by the arrangement of the rock-arm 30 in the manner herein set forth the bar 25 is connected to the controller 14 and that when the controller 14 is in its stoppage position (the retaining-lug 23 in the notch 21) the opening 27 in the bar 25 will register with the opening 26 in the casing and with the opening 28 in the plate 19. If the controller is moved to the left, as shown in Fig. 2,the rock-arm 30 will be elevated, moving the bar 25 upward and causing the opening 27 in the said bar 25 to be moved out of alinementwith the openings 26 and 28. If the controller is moved to the right, the rock-arm will be lowered, moving the bar 25 down and the opening 27 out of alinement with the openings 26 and 28. The L-shaped arm 16 and stud 17 carried thereby, operating in the slot 32, will move the rock-arm 30in a manner as herein described when the controller is moved in either direction. It will be evident that the opening 27 inthe bar 25 will register with the openings 26 and 28 only when the controller is brought to its stoppage position and normally retained in such position by means of the retaining-lug 23. The function of the openings 26, 27, and 28 and the registering of the opening 27 with the openings 26 and 28 will be hereinafter referred to. It will also be evident that the movement of the controller automatically operates the latch-arresting bar 25. The rock-arm 30 isarranged below the underneath face of the bottom of the car or cage. It will be evident that the bottom of the car is provided with openings to permit of the passage of the controller 14 and bar 25, so that they can be connected with the rockarm 30 in the manner as before described.

Secured to the inner face of the door 13 is an L-shaped bracket 36. One member of the bracket extends laterally from the door and has connected to its lower face a pair of lugs 37, which are apertured and are adapted to support a releasing-bar 33. The bar 38 extends through the lugs 37 and has connected to one end a handle 39 and to its opposite end an L-shaped arm 40. The bar 38 also carries a coil-spring 41, one end of which is connected to the bar and the other end to the bracket 36, as at 42. By the employment of the spring 41 the bar 38, which is adapted to oscillate in the studs 37, is caused to resume its normal position when the handle 39 is released. 1

The reference-numeral 43 denotes a latch, which consists of a leaf-spring, secured at its lower end to the shaft of the elevator in the path of the door, bracket 36, and bar 38. The L-shaped arm 40, carried on one end of the bar 38, is normally adapted to engage the outer face of the latch 43.

The reference-numeral 44 denotes a latchreleasing and controller-locking member, and it consists of a .leaf-spring provided with a stud 46 and is secured at its lower end in the recess 45,formed in the outer face of the front wall of the car or cage. The portion of the releasing member or spring 44 which is secured in the recess 45 is adapted to lie flush with the outer face of the front wall. The upper portion of the spring 44 normally projects away from the elevator car or-cage and preferably lies in the path of the bracket 36 and bar 38. The releasing member 44 when the car or cage is stopped ata landing comes opposite thelatch or spring 43, and the stud 46 is connected to the spring 44 at such point that it will normally extend partly in the opening 29 of the front wall.

The operation of the device is as follows: Assuming that the controller is in the position shown in Fig. 1, the openings 26, 27, 28, and 29 will register with one another, the handle 39 of the bar 38 is elevated, causing the L-shaped arm 40 to force the latch 43 against the releasing member 44, carrying the satne therewith, and moving the lug 46 into the openings 26, 27, 2S, and 29, permitting the door 13 to be opened. If the controller 14 is in any other position than that centrally of the quadrant-bars 20, the bar 25 willbe either moved upwardly ordownwardly, as the case may be, causing the opening 2 therein to be moved out of alinement with the openings 26 and 28. Therefore when the handle 39 is elevated the L-shaped arm 40 cannot move the latch and the releasing member and the stud out of the path of the bracket 36 and bar 38, and consequently arresting any movement of the door 13. It will be evident that the reason why the L-shapod arm 40 cannot move the latch 43 and releasing member out of the path of the bracket 36 and bar 38 is that the movement of the lug 46 will be arrested by the latch-arresting bar 25, the opening 27 of this bar being out of alinementwiththeopening28. Consequently the solid portion of the bar is presented to the lug 46, arresting its inward movement.

It will be evident that from the foregoing description, taken in connection with the accompanyingdrawings,that I provide a safetyelevator catch that can be adapted for elevators operated by electricity, hydraulic, or other power, and that, furthermore, I have provided a safety-elevator device by which the elevator-shaft door cannot be opened except when the car is properly at the landing, and when the door is open the car cannot be started because the lug 46, which engages in the opening 27 of the bar 25, will prevent the movement of said bar, therefore preventing the movement of the controller, or, in other words, locking the controller from movement. The stop-lug 46 not only prevents the opening of the shaft-door unless the elevator is properly at the landing; but also when the elevator-door is open it prevents the movement of the controller.

Itis thought the many advantages of the.

' of construction hereinbefore described and as shown in the accompanying drawings, but

reserve the right to make such changes, variations, and modifications as come properly within the scope of the protection'prayed.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a safety-elevator device, a latch adapted to be connected to a wall of an elevator- -shaft,-operating means for the said latch adapted to be connected to the door of an elevator-shaft, a releasing member adapted to be connected to the elevator-car, a controller carried by the elevator-car, and means operated by the controller and adapted to be engaged by the said releasing member for looking the controller from movement and to permit of the opening of the shaft-door.

2. In a safety-elevator device, a verticallymoving bar carried by the elevator-car, a controller for the elevator, connections between the controller and the bar for automatically operating the same, a latch adapted to be connected to the wall of an elevator-shaft, mech-- anism adapted to be carried by a door of the elevator-shaft for operating said latch, a releasing member adapted to be connected to the elevator-car and operated by said latch,

said member when operated adapted to engage said bar for lockin g the controller to prevent its movement and to permit of the opening of the door.

3. The combination of an elevator-car and an elevator-shaft provided with a door-opening and a door for closing saidopening, a latch for locking thesaid door, a releasing member provided with astud, mechanism carried by the door for operating the said latch, a controller for. .the .car', andmechan-i ism carried by thecar and automatically 0perated by thecontroller to permit of the operation of the releasing member by the said latch.

4. Incornbination, an elevator-car and its shaft having an opening and a door for said opening, of a controller on said car, a vertic'ally-extending and vertically-movable bar connected with the car, connections between said bar and controller for automatically operating the bar when the controller is operated, means adapted when operated to engage in the said bar to prevent the movement of the controller, and mechanism carried by the" door and adapted to operate the said means to permit of the opening of said door.

5. In combination, an elevator-car and its shaft having an opening and a door for said opening, of a controller on said car, a vertically-extending and vertically-movable bar connected with the car, connections between said bar and cont-roller for automatically op erating the bar when the controllerls operated, means adapted when operated to engage in the said bar to prevent the movement of the controller, and oscillatory mechanism carried by the door and adapted to operate the said means to permit of the opening of said door.

6. The combination with an elevator-car and its shaft having an opening and a door for said opening, a releasing member carried by the car provided with a stud, a yieldabl'e latch adapted to engage said releasing member for operating it, a controller on the'car,

a locking device connected with the controller, automatically operated thereby andprovided with an opening to receive said stud, and mechanism carried by the door for oper' ating said latch.

7. The combination of an elevator-car, and

its shaft having an opening, a door for said opening, a spring-latch for, holding the door shut, a latch-releasing and controlleialocking 1 member carried by the car and separate from the controller and said latch, a controller on said-car, and mechanism automatically operated by said controller for holdingthe said member'against movement 'whensaid con-,

troller occupies a position other than that assumed for stopping the car. v o

8. The combination of an elevator-car and its shaft having an opening, adoor for said opening, a latch for holding the door/shut, a

releasing member for said latch, a controller on said car, a vertically-extending and vertically-movable bar carried by said car, and

connections between said bar and said controller and operated by the latter forpreventing the movement of said releasing, member when said controller occupies positions other than that assumed for stopping the car.

9. The combination of an elevator-carand its shaft having an opening, a door for said opening, a latch for holding the door shut, mechanism. carried by the door for operating rtheilatch, a latch-releasing and controller- &

locking member carried by the car and separate from the controller and said latch, a controller on the car, and means connected with the controller and operated thereby for preventing the operation of said member except when the controller is in a certain position.

10. The combination of an elevator-car and its shaft having an opening, a door for said opening, a latch, mechanism carried by the door for operating said latch, a latch-releasing and controller-locking member carried by the car and separate from the controller and said latch, a controller on the car, and means operated by the controller and adapted to be engaged by said member for holding the controller in a certain position.

11. In a safety device for elevators, a controller adapted to be carried by the elevatorcar, a vertically-moving bar carried by the elevator-car, connections between the said bar and controller for automatically operating the 'bar when the controller is operated, said bar provided with an opening, a releasing member carried by the elevator-car and provided with a stud adapted to engage in the said opening to arrest the movement of the controller, a latch adapted to be brought into engagement with said releasing member for forcing the said stud into said opening, said latch adapted to be secured to the elevatorshaft, and mechanism carried by a door of the elevator-shaft for operating the said latch.

12. The combination with an elevator-car, an elevator-shaft provided with an opening and a door for said opening, of a latch secured to the wall of the elevator-shaft and normally lying in the path of the door, mechanism carried by the said door for moving the latch out of the path thereof, a releasing member connected to the car and provided with a stud, said releasing member normally lying in the path of said mechanism carried by the door and adapted to be moved out of the path of said mechanism when said latch is operated by the mechanism, a verticallymovable plate carried by the elevator-car and provided with an opening adapted to receive the said stud when the releasing member is moved by the latch, a controller carried by the elevator, and connections between the controller and bar for operating the latter when the controller is operated.

13. The combination of an elevator-car, an elevator-shaft having an opening, a door for said opening, a latch secured to the wall of the elevator-shaft and arranged in the path of the said door, mechanism carried by the door for moving the said latch out of the path thereof, a releasing member connected to the elevator-car and arranged in the path of said mechanism, said releasing member adapted tobe moved out of the path of the said mechanism when the latter is operated, means carried by the elevator-car to permit of the move ment of the releasing mechanism, a rock-arm connected with said means, and a controller carried by the car and connected to said arm for operating the latter thereby operating the said means.

14.. The combination of an elevator-car and its casing having an opening, a door for said opening, a quadrant-bar carried by the elevator-car and provided with a centrally-arranged notch, a controller carried by the car and provided with a spring-pressed retaininglug adapted to engage in said notch, a vertically-movable bar carried by the car, said bar provided with an opening, connections between the bar and controller to cause the automatic operation ofthe bar when the controller is moved, a releasing member carried by the car and provided with a stud adapted to engage in the said opening for arresting the movement of said bar to prevent the movement of the controller, a latch in the path of the door, and mechanism carried by the door for operating said latch and imparting movement to the said releasing member to cause the stud thereof to engage in said opening, said latch when operated adapted to permit of the opening of the door.

15. The combination of an elevator-car and its shaft having an opening, a door for said opening, a spring-latch automatically movable in position to prevent said door from opening, mechanism carried by the door for moving said latch to permit of the opening of the d0or,a latch-releasing and controller-locking member carried by the car and separate from the controller and said latch, a controller carried by the car, and mechanism connected with the controller and engaged by the said member for arresting the movement of the controller. 1

16. The combination of an elevator-car and its shaft having an opening, a door for said opening, a spring-latch automatically movable in position to hold said door, mechanism carried by the door for moving the said latch out'of position to permit of the opening of the door, a releasing member for the latch, a vertically-movable bar adapted to be engaged by the releasing member to permit of the moving of the latch out of position, a controller carried by the car, an L-shaped arm connected with the controller and provided with a stud, a rock-arm pivoted at one end to said bar and provided with a slot in which operates the said stud, and means for pivoting the other end of the rock-arm to the bottom of the elevator-car.

17. The combination of an elevator-car and its shaft having an opening, a door for said opening, a plate carried by the car and provided with an opening, a casing connected to said plate, a vertically-movable bar arranged in said casing and provided with an opening, a controller carried by the car and connected with said bar, said controller when in a certain position adapted to cause the opening of the bar to register with the opening of the plate, a latch automatically movable into position to hold said door, mechanism carried by the door for moving the said latch out of position, and a releasing and locking member provided with a stud, said releasing member adapted to be engaged by said latch for moving the same to cause the stud to engage in the said openings to permit of the moving of the latch out of position and to lock the controller for arresting the movement thereof.

18. The combination of an elevator-car and its shaft having an opening, a door for said opening, a spring-latch for holding said door shut, means carried by the'door for moving said latch out of position to permit of the opening of the door, a releasing member provided with astud and adapted to be engaged by said latch for moving the said releasing member out of position, a controller on the car, and mechanism carried by the car and operated by the controller and adapted to be engaged by said stud to permit of the moving of the spring-latch and releasing member so the door can be opened and to lock the controller for preventing movement thereof.

19. The combination of an elevator-car and its shaft having an opening, a door for said opening, an oscillatory bar carried by said door, an arm carried by said bar and adapted to be operated-thereby, a'latch in the path of the door, said latch adapted to be engaged by said arm for moving it out of the path of the door to permit of the door being opened, alatch-releasing and controller-locking member carried by the car and separate from the controller and said latch, a controller carried by the car, and mechanism operated by the controller and adapted to be engaged by the said member to permit of the operation of the latter and the said latch so the door can be opened and to lock the controller from movement. v

20. The combination of an elevator-car and its shaft having an opening, a door for said opening, an oscillatory bar carried by said door, an arm carried by said bar and adapted nesses.

to be operated thereby, a latch in the path of the door, said latch adapted to be engaged by said arm for moving it out of the path of the door to permit of the door being opened, a releasing member for retainingthe latch in the path of the door, acontroller carried by the car, a vertically-movable bar carried by the car and adapted to be engaged by the said releasing member to permit of the operation of the latch and said member so that the door can be opened, and connections between the controller and the said bar for automatically operating the latter when the controller is operated.

21. In asafety-elevator device, averticallyextending and vertically-movable member adapted to be automatically operated by the controller of the car, means adapted to engage said member for arresting the movement thereof and the controller, and mechanism adapted to be connected with an elevator-shaft for operating the said means to cause the same to engage the said verticallymovable member.

22. In a safety-elevator device, the combination with the elevator-car and the elevatorshaft, of a controller'carried by the .car, a

vertically-extending and vertically-movable member automatically operated by the move- .ment of the controller, means adapted to engage in the said vertically-movable member for arresting the movement of the controller, and mechanism connected with the elevatorshaft for operating the said means to cause the same to engage the vertically-movable member.

In testimony whereof I have hereunto set my hand in presence of two subscribing wit- WILLIAM H. WILSEY.

Witnesses:

O. W. TAYLOR, GEO. M. PARDOE. 

